LIST OF PARTS FOR YOUR POSTBAN THAT QUALIFY AS USA MADE § 178.39 Assembly of semiautomatic rifles or shotguns. (a) No person shall assemble a semiautomatic rifle or any shotgun using more than 10 of the imported parts listed in paragraph (c) of this section if the assembled firearm is prohibited from importation under section 925(d)(3) as not being particularly suitable for or readily adaptable to sporting purposes. (c) For purposes of this section, the term "imported parts" are: